Improvement in guide-boards



J'. T. HART.

Y GUIDE-BOARD. No. 193,405. Patented July 24, 1877.

MPErERS. Frlw-LITHQGHAPNERi wAsHxNaToN n c UNITED STATES PATENT OFFICE.,

JONATHAN T. HART, OF KENSINGTON, CONNECTICUT, ASSIGNOR TO MOOREMANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN GUIDE-BOARDS.

Specification forming part of Letters Patent No. 193,405, dated July 24,1877; BJPPIMOD filed February 17, 1877.

.f bodies my invention, and Fig. 2 is a horizontal ',hsectiou of thesame on line of Fig. l.

N ,f A designates the board proper, which I form ,.f" of heavysheep-iron, and well galvanized, so as to be proof against rust o1`other damaging eiect of the weather. Near the middle of its length arescrew-holes a. al a, through which holes screws may be passed forsecuring the board to a proper upright, of any ordinary construction.

The metal plate A has a dat or even front face, and should be thickenough so that thel ends which project beyond the upright will notbecome either bent or broken by stones or other missiles thrown againstit, and it is evident it would not be split; also, when stones and thelike strike against the board and glance oi, the board will not becomemarred by indeutations,as iu a wooden board; neither will its surfacebecome marred by scratches, as in a painted iron board.

The hand or index b and the figure and letters I form separately,preferably of cast-iron, making them broad and dat on the back, androunded on the front. I thenM coat them with japan, black varnish, orcoating of some kind not easily aected by time aud weather, andcontrasting in color with the board proper.

The hand or index b, I form in both rights y and lefts, and a number ofthem, together with the mile tigures and letters, may be made and keptin stock.

- When aboard is to be constructed the proper mile figure or gures,index, and letters are selected, and tirmly secured iu proper position,with their lat sides on the iron-plate backing, which constitutes theboard proper, by means of rivets or small screws, the former beingpreferred.

If the town lies at the left of where the board is to be set up, then aright-hand index is selected, as shown in the drawing; but if the townlies at the right, then a left-hand index is placedon the board.

By the above construction a very cheap and durable board can beproduced. v

The cast-iron letters, gures, and index are, when unsupported, quitebrittle and fragile; but by being secured with their flat backs restingon and supported throughout by au unyieldiug backing of wrought-iron,they will not give or move when hit by stones or other missiles thrownagainst them, and therefore would not be broken thereby, as cast-ironletters supported only by a yielding backing would be when a like blowis received by them.

In my improved guide-board neither the characters nor the boards areliable to be iujured by any of the ordinary rough uses to whichguide-boards are subjected.

1 claim as my invention- In a guide-board, the iron-plate backing A,having an even front face, iu com binatiou with the cast-iron lettersand characters having flat backs, the parts secured together with suchbacks resting on and supported by the solid iron-plate backing, allsubstantially as described, and for the purpose specified.

JONATHAN T. HART.

Witnesses:

J AMES SHEPAED, CHARLES E. MITCHELL.

